Strainer for sugar-juice



, 1919- .?.Pamme' June 89 i920,

. E. CARTER.

STRAINER FOR SUGAR. JUICE. APPLICATION FILED AuG.16, 1916. RENEWED FEB.7

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MARTIN E. CARTER, OF PHILADELPHIA, PENNSYLVANA.

STN'ER FOR SUGAR-JUICE.

rename.

Specification of Letters Patent.

Patented June 8, 19210..

Application led August 16, 1916, Serial No. 115,185. Renewed February 7,1919. Serial No. 2725,67?.

To all whom t may concern:

Be it known that l, MARTIN EARL CAR- TER, a citizen of the UnitedStates, residing in Philadel hia, Pennsylvania, have invented certainmprovements in Strainers for Sugar-Juices, of which the following is aspecification.

A My invention relates to liquid straining devices; and the object of myinventionis to provide a revolvingstructure inl which sugar juices maybe strained. More particularly .an improved structure has been designedJfor straining deecated sugar juices, although it will be understoodthat it maybe employed for straining other liquids.

The structure forming the subject of my invention comprises a pluralityof rotating strainers of foraminous or reticulated material disposedwithin a suitable casing, from the bottom of which the strained juiceAis discharged; such strainers being mounted-in vertical alinement upon ashaft which may be. drivenror rotated by suitable means. In. the presentinstance, l propose to effect this rotation by a turbine structure,mounted .at

the upper 'end of the shaft, which will be driven by the entering juice,and such juice `may be introduced under pressure or under a sulicienthead to drive'the shatwith the strainer baskets at the desired speed.

While l may employ' any suitable number of straining elements, inthepresent instance l have shown three funnel-shaped baskets, one aboveanother; the lower basket being the largest, and these baskets comprisesuccessively finer strainer mediums, from top to bottom. T he upperbaskets'V may be of perforated plates ;vv the' second basket having moreaperturesper square inch thanI the first; while the lower basket may beof wire gauze with considerably more aper# tures per square inch thanthe second straining basket.

My invention is more vfully c'le'scribed hereinafter, reference being.had to the -accompanyingf'drawings, in which: Y Y

Figure 1, is a sectional elevation of the improved straining device madein accordance with my invention. l

Fig. 2, is a plan view, `partly in section on the line Hill, Fig. l1.

Fig. 3, is a, sectional plan view on the line III-111, Fig. 1, showingthe upper stralner.

Fig. 4, is a sectional view of one of the turbine buckets, on the linelV--IV, Fig. 2, and

v`Fig.5, is a sectional plan view on the line V-'V, Fig. 1.

ln the drawings, 1 represents a suitable casing within which thefunnel-shaped screens or strainers may be contained. This casing may beprovided with an annular ring 2 whereby it may be supported by floorbeams 8 or other means, and the top of the structure may bebraced orstayed by suitable brackets' 4. Centrally disposed with respect to thecasing and the screens is a shaft 5,. having a ball bearing 6 suitablymounted at the upper end of the structure, and a` step bearing 7, withan interposed ball race 8, at the bottom of the casing.

Within this casing are a plurality of funneljshaped strainers orA,screens 9', 10 and 11,!of suitable oraminous or reticulated material,which may be perforated plates or wire gauze, and these strainers orscreens are preferably progressively finer from. top to bottom: of thestructure. Each .of the strainers or screens includes an annular ringspectively, forming discharge outlets for the screens; each of saidtubular outlets having hubs 15 whereby they may be secured to the shaft5 byy set screws 16, the hubs having bracing arms or spokes 17connecting them with the-members 14;.

At the upper portion of the structure, l provide a casing 20 to whichthe juice may be delivered from an inlet opening 21. Within the chamber22 formed by this casing `is a turbine structure secured .to the shaft5" whereby the entering juice may drive said shaft and the screens or strainers carried thereby.V This turbine structure'may comprise,l asuitable plate 25, supported by arms 26, carried by a hub 27', securedto the shaft 5,' va-nd having a plurality .Q

buckets 28. Theplate25` is apertured at .29 directly adjacent eachbucket so that the 'juice' inay ,drop away from the plate as well asdischarge from the outer edge of said plate against the wall of thecasing 20; The juice enters the casing at an angle tangent to thebuckets, and striking the same effects rotation of the shaft. The casing20 is provided with a depend-ing flange or guard 30, which may be stayedand held in properV position by means of braces 31 interposed betweenthe same and the casing wall 1; such guard insuring dlseharge of all theentering juice into A.the screen or strainer 9.

Carriedby the shaft 5, directly below the turbine structure, is aconical deiector 32 so disposed that any juice dropping from the chamber22 toward the center of rotation will be thrown by said delector towardthe screen. At the lower part of the screen, a secondl deliector 33 ismounted, substantially closing the bottom of the screen except for anarrow annular outlet, which deflector serves to guide the juice towardthe screen and prevent as much as kpossible from entering the tubularout-- let member 14, with the separated dirt, &c. Any dirt separated orstrained from the juice by the screen ,willY pass down the walls of thesame and through the 'fopen'y mouths of the outlet members 14, 1450i'14", of the screens into the succeeding screen where ity may besubjected to further screening action, and so on until it empties fromthe lower screenv 14b into a-pipe 34 which is in communication with apipe'35 -through which all the dirt and separated matter removed fromthe juice discharges.

The lower ball bearing may be protected' by a conical deflector 36disposed-within j the pipe 34. The strained juice, from which the dirtand any other objectionable matter has been removed, passes from .thecasing 1 through the outlet 40.

Each of the screens is provided with a.4

lower: deflecting member 33 to guide the jui'ce toward the strainingAwall 'f the same. These deflectors have hubs 41 whereby they may besecured to the shaft and a set screw 42 may be employed.l for thispurpose. By this means they are capable of any adjustment on the shaft 5that maybe necessary. Carried bythe casing above the upper edge of thelower screen or strainer,

screen or ribs may be thrown outwardly for discharge from the casingvand away from the point of delivery of the dirt and filtered material;'such deflector overlying the discharge 'pipe 34.

In order that the screens may be` cleaned of any collected matter shouldsuch action ever become necessary, I may provide steam jets for thepurpose.` To this end, pipes 46 may be introduced at one side of the'apparatus and be disposed directly adjacent the screens, at the samevangle and parallel therewith. These pipes are suitably connected to amanifold pipe 47, in communication with a source of'supply, so thatcleaning of the screens may be effected. while the machine is inoperation. The cleaning of the screens may go on while the juice isbeing strained, or it may be done a'fter straining .has been effected.

I preferably stay the several, screens with respect to the shaft 5 bymeans of suitable rods v50,'pivot'all connected at l51 to the hubs 41 ofthe efi'ectors 43, and at 52 to brackets 53, secured to the ribs 13 ofthe respective screens, whereby Iam able to avoid 4all danger ofthescreens running out of true.. Thesestay rods are preferably providedwith turnbuckles 54 to permit adjustment with respect tothe screen wallsand shaft and insurev proper alinement; in suring proper Voperation'ofthe screens.

I claim:

4 1.; In a strainer for sugar juices and the like the combination of acasing, a vertical shaft mounted therein, a deep funnelshaped strainingscreen carried by said shaft, means for introducing juice to saidscreen, means for/ rotating the screen,'a substantially cone-shapedmember forming a contracted annular outlet adjacent thebottomv ofthescreen and serving to divert the bulk ofthe juice for passage throughsaid screen, and separate outlets leading from the hottom of the casingfor the discharge of juice and the material strained therefrom.

2. In astra-iner for sugar juicesand the cal shaft mounted ther'e'in, adeep funnel- 'shaped -lstraining screen carried by said shaft, a"juice-receiving chamber at the upper part of the casing, means forintroducing juice tangentially to said chamber, a disk having bucketscarriedb'y said shaft and disposed within said chamber whereby theentering juice may impinge on said buckets to drive thet shaft androtate the screen; said juice discharging` from `the buckets to thescreen, a substantially coneshaped member disposed within the screen andforming a contracted annular outlet adjacent the bottom of the same.;said member serving to divert the bulk of the juice for passage throughsaid screenand separate outlets vleading from the casing for thedischarge of juice and material strained therefrom.A

3. ln a strainer for sugar juices and the like, the combination of acasing, a vertical shaft mounted thereon, a plurality of deepfunnel-shapedstraining screens carried by said shaft, a juice-receivingchamber at the upper part of the casing, a disk having buckets carriedby said shaft and disposed within said chamber, means for introducingjuice tangentially to said chamber whereby it may impinge upon thebuckets to drive the shaft and rotate the several screens;- said juicedropping from the buck ets to the upper screen, each of said screenshaving a substantially cone-shaped mem ber-disposed Within the same andforming a contracted annular outlet adjacent the bottom thereof; saidmember serving-to d1- lvert the bulk of the juice for passage throughsaid screen, and separate outlets for the strained juice and materialstrained therefrom.

4. The combination, in a sugar strainer, of

a casing, a vertical revolublev shaft, a plurality -of inverted conicalscreens carriedl by said shaft, said screens increasing in fineness fromtop to bottom of the structure, conical delectors Within 'said screensadjacent the bottoms of the same and serving to divert the bulk of thejuice for. passage through said screens; said defiectors providingnarrow7 annular passages between-,the same and the wall ofthe'respective screens, and means disposed at lthe top of the shaft foreffecting rotation Yof the same and the screens carried thereby by theincoming juice.

5. The combination, in a sugar .juice strainer, of a casing, a Verticalrevoluble shaft, a plurality of inverted conical screens carried by saidshaft, said screens increasing in iineness from top to bottom of thestructure, a conical deflector Within each of said screens and forming aycontracted annular outlet adjacent the bottom of the same, a turbinestructure at the upper end of the shaft for rotating said screenscomprising an apertured disk with buckets, a pipe for delivering theincoming juice tangentially to the buckets of said turbine structure,and separate outlets leading from the casing for the strained juice andthe materiallseparated therefrom.

G. ln a straining 'devicefor sugar juices, the combination of a. casing,aI vertically disposed revoluble shaft. mounted in said casing, bearingsat top and bottom of the structure for said shaft, aplurality ofy deepfunnel-shaped straining screens carried by said shaft, adjustable juicedeectors carried by said shaft and forming contracted annular outletsadjacent the bottoms of said straining screens, an apertured diskcarried by the upper end of the shaft, buckets'carggg tom of said screenand forming a contractedannular outlet therefor, and adjustable stayrods connected between the wall of the screen and the upper part of saidjuice deiector. 8. ln a strainer for sugar juices and th like, thecombination of a casing, a vertical shaft mounted therein, 'a strainingscreen carriedby said shaft, an adjustable conical juicedeflectiorcarried by the shaft adjacent the bottom of said screen andforming a vcontracted annular outlet therefor, and adjustable stay rodsconnected between the wall ofthe screen and the upper part of saidadjustable juice detlector.

9. ln a strainerfor sugar .juices and the like,the combi'nation'of acasing, a vertical shaft mounted therein, a plurality of screens carriedby said shaft, discharge members secured to the lower ends; of saidscreens and connected to'the shaft, juice deiectors car ried by theshaft above said discharge members and forming contracted annularoutlets for the screens, and stay rods mounted relatively adjacent theupper portionsof the screens and connecting the same with the upperportion of said juice deflectors.

10. ln a strainer for sugar juices and the like, the combination of acasing, a vertical shaft mounted therein, a plurality of screens carriedbyfsaid shaft, discharge outlet members secured vto the lower ends ofsaid screens and connected l.to the shaft, adjust-v able juicedeflectors carried by the shaft and forming contracted outlets adjacentthe bottoms of the screens; said juice deflectors being mounted.directly above the discharge outlet members, and adjustable stay rodsmounted relatively adjacent the upper portions of the screens Vandconnecting the same with the juice deflectors carried by the shaft.

11. ln a strainer the combination of a straining screen, a'shaft uponwhich said screen is axially mounted, means for introducing juice'tosaid screen, a turbine Wheel carried by the upperend of theshaft againstwhich the incoming juice strikes;..said turbine serving 'to move theshaft and the screen attached thereto, a casing inclosing said4 turbineand depending into the screen to insure proper delivery of th'e enteringliquid thereto, land a detlector carried by said shaft for divertingentering liquid to the screen. j

12. ,ln a strainer, the combination of a the falling same.

14. In a strainer forsugar juices andthe plurality of straining screens,a shaft upon which said screens are axially mounted, means forintroducing juice to the upper screen, a turbine Wheel carried by theupper end of the shaft` against which the incoming juice strikes; saidturbine serving to move the shaft and the screens attached thereto, acasing inclosing said turbine and depending into the upper screen toinsure proper delivery of the entering liquid thereto, and delectorscarried b said shaft for diverting the falling liqu`i to the severalscreens.

13. In a strainer, the combination of a plurality of straining screens,a shaft upon which said screens are axiallly mounted, means forintroducing juice to said strainer, means for rotating the shaft and thescreens attached thereto, a casing communicating With said juice inletand depending `into the upper screen to insure proper delivery oi' theentering liquid thereto, and a series Vof de-v flectors carried by saidshaft and disposed Within the respective screens for diverting liquidfor passage through the like, the combination of a cas1nga verticalshaft mounted therein, a `funnel-shaped straining screencarried by saidshaft, means for introducing juice to said screen, means for rotatingthe screen, and means carried by the shaft Within the screen toform acontracted annular outlet adjacent the botlike, the combination of acasing, a vertical shaft mounted therein, -a plurality of fun-lnel-shaped straining screens carried by said shaft, means forintroducing juice to said screens, means for rotating the screens, andmeans carried bythe shaftwvithin the respective screens to formcontracted annular outlets adjacent the bottoms of said screens andserving to divert the bulk of the juice passing through said screens tothe foraniinous Walls of the same.

16. In a strainer for sugar juices and the like., the combination of acasing, a vertical shaft mounted therein, a plurality of funnel-shapedstraining screens carried by said shaft, means `for introducing juice tosaid screens, means for rotating the screens, means carried by the shaftWithin the respective screens to form contracted annular outletsadjacent the bottoms of said screens and serving to. divert the bulk ofthe juice passing through said screens to the foraminous Walls thereof,separate outlets leading from the bottom of the casingfor the dischargeof juice and the' material strained therefrom, and an annular deectorcarried by the lower screen and guarding the outlet for the materialstrained from the juice. Y

MARTIN E. CARTER.

